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Thread: Sískin

  1. #61
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    Jun 2014
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    Cheltenham, Canada
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    59
    Bunsen Honeydew, I would like to see what you scaled up regarding the Siskin.

    I suspect that the book you are referring to is the Data File by Grainger (sp?). I know that it has some drawings relating to the IIIa model in particular the panel. My concern in using that drawing is the lack of provenance as to where the information came from therefore I don't know how much to trust it. That's one of the reasons that I am seeking cockpit photos. My (current) focus is on the Siskin III DC two seater because that is what the majority of my drawings are for. While the III DC and IIIa were in service at the same time, as far as I can tell the IIIs converted to IIIDC retained the earlier panel. The IIIDC does not appear to have had radio equipment installed with the 2nd seat occupying the area where the radios are installed on the IIIa.

    My preference would be to re-create a IIIa since they were the ultimate service variant, the one that we most often see in photos and drawings. I just don't have enough firm information to attempt a re-creation of a IIIa.

    Regards,
    John

  2. #62
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    Jun 2014
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    Air Ministry, at this time I won't discount any theory. I can tell you that the Siskin had 2 battery types: a No.0, Mk III of 2v (typo?); and a No. 3 Mk III of 12v. I have yet to find a description, or better still a dimensioned diagram, of either. That information would make it easier to 'guesstimate' where they were located.

    Thank you for your thoughts.

    Regards
    John

  3. #63
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    Dec 1999
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    Stamford Lincs
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    9,573
    There was an Ian Allen special in the early 1970's which from memory had a cockpit shot of a Siskin along with other interesting Siskin details.

  4. #64
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    Quote Originally Posted by David Burke View Post
    There was an Ian Allen special in the early 1970's which from memory had a cockpit shot of a Siskin along with other interesting Siskin details.
    This one?
    http://www.ebay.com/itm/Aircraft-Ill...item540956d6cd

  5. #65
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    Dec 1999
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    No -it was about A5 size - I have it at home .

  6. #66
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    Jun 2014
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    Cheltenham, Canada
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    It has been some time since I last posted but that doesn't mean this research project has stopped.

    A few 'new' instruments have appeared for the panel including a serviceable Mk IVa air speed indicator and this beauty:



    For some reason air pressure gauges seem to be one of the more difficult gauges to find so very pleased that this one has come our way.

    Earlier I posted about finding the correct wind generator in my garage. Not long after that post I came across an auction for the appropriate voltage regulator listed as a Wapiti part (which it may well be for). An elaborate equation involving the Australian and Canadian postal services as well as Christmas holidays meant that it was some months before the unit appeared at my door. But arrive it did, safe and sound. While a little shop worn and a few bent bits it is in very good condition and a quick continuity check shows that it may be functional after a little care.







    If anyone has any information on overhaul or test procedures I would be grateful.

    A forum member has put me in contact with a museum holding a Jaguar engine in their reserve collection. If the stars align it may become available. There is a plan in place to visit this engine in the near future.

    On a final note, I am off to the UK later this week for a 10 day vacation. Anticipated high light for me will be spending time with the RAF Museum's existing Siskin components. Thank you to the forum members who posted about various parts/components beyond the well known wing sections. I expect that accurate measurement and photographing will fill in some of the many gaps in the existing plans.

    That is all for now, more as the project advances.

    Regards
    John

  7. #67
    Join Date
    Jul 2006
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    2,565
    Probably of not much use is the "Blueprint" issued with Aeroplane Monthly some time in the 1970's. It's by the late Frank Munger the Staff artist at Flight for many years. It consists of a three view with a lot of structural details,fuselage frame joints, control runs etc.

    Frank was a superb 'cutaway ' draughtsman and he had access to anything that Flight archives had. Alf Granger did a number of the illustrations and articles in the A5 Ian Allan Aircraft Illustrated Extras so they might be the same detail as in the blue Siskin Datafile.

    John

  8. #68
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    Jun 2014
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    John, never say never. I am not familiar with that particular drawing and would not discount its value. Can you point me to a source for this drawing?

    Regards
    John

  9. #69
    Join Date
    Mar 2004
    Location
    Usually somewhere....
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    I have a copy of that "blue-print" somewhere myself.
    Always hoped that there would be a Siskin built one day.
    John you are aware of the wing structure in the Midland Air Museum at Coventry?
    ATVB
    G
    It is only kinky the first time...

  10. #70
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    Jun 2014
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    Cheltenham, Canada
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    Arm Waver, yes I am aware and thank you for the prompt. I expect to be 'hands on' with the other surviving wings next week. If you can find and perhaps post an image of 'the blue print', I am sure that it would be informative.

    Regards
    John

  11. #71
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    Just a very quick pic to see if there is anything of interest on the drawing.

    John


    [IMG][/IMG]

  12. #72
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    Dec 1999
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    Stamford Lincs
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    Still trying to find my Aircraft Illustrated Extra on the Siskin.

  13. #73
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    Jun 2014
    Location
    Cheltenham, Canada
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    Thank you for the replies.

    John Aeroclub, a good drawing and of particular interest are the isometric views of the fuselage joints in the lower left.

    While labelled 'Siskin III', it is actually of the IIIa. Of interest is the rear fuselage section. The 'a' has 4 bays aft of the fore/aft joint with the pronounced Siskin angle up to the tail. The 'III' has a quite different rear section using 3 bays and an upper longeron level with the forward section ie conventional looking.

    If you were to find a IIIa bare fuselage it would be remarkable because of the change in shape aft of the cockpit. The III could be mistaken, in shape, for other aircraft of the era.

    Regards
    John

    Regards
    John

  14. #74
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    Jun 2014
    Location
    Cheltenham, Canada
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    David, thank you for your ongoing support.

    Regards
    John

  15. #75
    Join Date
    Jan 2008
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    1,484
    If anyone has any information...
    All I can offer is this Chapter from an early edition of AP1095. Hope it is of interest.
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    The garage that keeps on giving

  16. #76
    Join Date
    Jul 2006
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    2,565
    The detail

    John


    [IMG] photo Neg636_zpshaqskcyh.jpg[/IMG]

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